I would suggest spending a lot of time on this site reading up on breeding. There is a lot of information and things that you might not think about when getting into breeding. My first thing is the upfront cost, when having multiple snakes, obviously everything gets more expensive. Feeding, housing (I would suggest a rack system) Just equipment and setup is not cheap. Read this too
http://ball-pythons.net/forums/showt...gs-to-consider IMO its well worth it, I love the genetics too and just the curiousity of seeing what can be produced. It's definitely a hobby for me, and I plan to keep it that way. I would just say Read Read Read and ask questions, you can always learn new things.
As for the snakes part, I'm not sure if you are looking to try and breed next season or if you don't mind getting some hatchlings and raising them for for a few years down the road start breeding. If you are looking for sooner, I would just say get a large normal female and probably a two gene hatchling male (bumblebees never get old IMO). It would basically be a feeler, see if it's something you want to do, or see if it's not... Eitherway, it is a good starting point IMO. If you don't mind waiting for a couple years to breed, then you could start with a single gene female, maybe a pastel or lesser or something to get you going and raise her up to breeding size. I'm not sure what you want to do but be careful it can get addicting

Also, one more thing and I'll stop rambling, go check out
http://www.worldofballpythons.com/morphs/ they have pictures and the genetics to all kinds of morphs. It is pretty cool, and you can get a feel for what genes you like and then just pick what you like. Afterall, it is YOUR hobby, do what you love.
Hope this was some help (but I'm by no means an expert.)
Calder